a male given name: from Celtic words meaning “world” and “power.”.
British Dictionary definitions for Donald
Donald
/ˈdɒnəld/
noun
1.
?1031–1100, king of Scotland (1093–94; 1094–97)
Word Origin and History for Donald
surname, from 13c. Scottish Dofnald, Dufenald, probably from Gaelic Domhnall, Old Irish Domnall (pronounced "Dovnall"), from Proto-Celtic *Dubno-valos "world-mighty, ruler of the world," from *walos "ruler" + PIE *dheub- (see deep (adj.)).